Research theme for competitive and other funds (8):
2022 - 2025 Study of the quantum effects of para-hydrogen with high-sensitive coherent double resonance spectroscopy and its application to interstellar chemistry
2012 - 2015 コヒーレント相互作用を利用したホモキラリティの研究
2009 - 2012 ラジカルクラスターを利用したラジカル反応の立体効果の研究
2007 - 2010 Detections and dynamics of internal motions of radicals and radical complexes with very weak bondings
2007 - 2009 水和により誘起される過酸化ラジカルの分子構造変化と反応性に関する分光研究
2004 - 2006 新しい2重共鳴分光法を用いた含金属炭素鎖分子の分子構造及び電子構造の研究
2001 - 2003 高分解能分光法によるラジカル錯体の検出と構造および分子間ポテンシャルの決定
1997 - 1999 Electronic Structure and Excited State Dynamics of Carbon-chain free radicals
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Papers (76):
C. Cabezas, J. Tang, M. Agúndez, K. Seiki, Y. Sumiyoshi, Y. Ohshima, B. Tercero, N. Marcelino, R. Fuentetaja, P. de Vicente, et al. Laboratory and astronomical discovery of the cyanovinyl radical H<sub>2</sub>CCCN. Astronomy & Astrophysics. 2023. 676. L5-L5
Chihaya Motoyoshi, Yoshihiro Sumiyoshi, Yasuki Endo, Masaru Fukushima, Takashi Ishiwata. Laser induced fluorescence spectroscopy of the jet cooled SiNSi radical: Rotational analysis of the E 2Sigma_u+ - X 2Pi_g transition. Journal of Molecular Spectroscopy. 2023. 391. 111731-111731
Masakazu Nakajima, Yi-Ting Liu, Ching Hua Chang, Kenji Seiki, Yoshihiro Sumiyoshi, Yasuhiro Ohshima, Jian Tang, Yasuki Endo. Fine and hyperfine coupling constants of the cis-β-cyanovinyl radical, HCCHCN. Physical Chemistry Chemical Physics. 2022. 24. 19. 11585-11591
Mitsunori Araki, Shuro Takano, Nobuhiko Kuze, Yoshiaki Minami, Takahiro Oyama, Kazuhisa Kamegai, Yoshihiro Sumiyoshi, Koichi Tsukiyama. Observations and analysis of absorption lines including J = K rotational levels of CH3CN: the envelope of Sagittarius B2(M). Monthly Notices of the Royal Astronomical Society. 2020. 497. 2. 1521-1535
T. Oyama, H. Ozaki, Y. Sumiyoshi, M. Araki, S. Takano, N. Kuze, K. Tsukiyama. Reevaluation of C4H Abundance Based on the Revised Dipole Moment. The Astrophysical Journal. 2020. 890. 39(8pp)